Thread: Speed PID loop
View Single Post
  #5   Spotlight this post!  
Unread 06-02-2012, 09:17
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,089
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Speed PID loop

Quote:
Originally Posted by nickpeq View Post
I think you would need a custom counter circuit, or you'd be trying to poll your sensor constantly and hope you don't miss a changed state.
You don't need to poll the sensor. The FPGA can do the counting for you in hardware. Then your software just asks the FPGA for the count when it needs it.

Reply With Quote